95% of the time I'll use homemade sauce because it's not hard and I make enough to freeze and last a few months. But that said, I like Cento sauces, especially the arrabbiata. They have San Marzano tomatoes and no weird ingredients.
Haven't tried their sauces, but their crushed canned tomatoes definitely have the best flavor.
Rustichella d'Abrazzo Tomato Sauce with Basil (probably available at Whole Foods and some other organic/whole foods grocery stores) has amazing flavor. It's just fresh tomatoes, extra virgin olive oil, carrots, onion, sugar, basil, and salt. Other brands I've tried since discovering this one seem either too flat/bland or too artificial and processed.
“If you hate a person, you hate something in him that is part of yourself. What isn't part of ourselves doesn't disturb us.” - Hermann Hesse